How does chemical energy hold molecules together?

The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

What are the similarities & differences between a thermistor and a light dependent resistor in physics?